本文讨论的供水可行性研究调查了新罗谢尔水务公司（NRWC）可用的替代方案，以连接新的原水供应，并将指定设施转换为备用设施，以符合地表水处理规则。NRWC可以选择在Pocantico清洁和铺设17000英尺的16英寸管道，或者在Little Catskill泵站添加新泵，以提升16英寸干管中的压力。尽管清洁和衬里成本较低，但增加新泵可提供更大的操作灵活性。这种替代方案不仅具有灵活性，而且是成本最低的替代方案。配水系统水力的计算机模型显然为配水系统管理提供了强大而直接的技术。 预测整个系统压力和流量的能力是水网规划、设计和运行的重要工具。这些模型的有效使用极大地扩展了实践工程师在各种不同场景下构思和检查众多系统改进方案的能力，并确保确定了具有成本效益的解决方案。

The water supply feasibility study discussed in this paper investigated alternatives available to the New Rochelle Water Company (NRWC) to connect to a new raw water supply and convert designated facilities to standby in order to comply with the Surface Water Treatment Rule. The NRWC can either choose to clean and line 17,000 feet of 16-inch pipe in Pocantico or add new pumps at the Little Catskill Pump Station for boosting pressure in the 16-inch main. Although cleaning and lining provides a lower cost, adding new pumps offers greater operational flexibility. This alternative not only offers flexibility, but is also the least cost alternative. Computer models of distribution system hydraulics clearly provide powerful and straight forward technology for use in water distribution system management. The capability of predicting pressures and flows throughout the system is an essential tool in the planning, design and operation of water networks. The effective use of these models greatly expands the ability of practicing engineers to conceive and examine numerous system improvement alternatives under a variety of different scenarios and ensures that cost-effective solutions are identified.